duty cycle

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duty cycle

the percentage of time that ultrasound is being generated (pulse duration) over one pulse period. Also called duty factor, mark:space ratio.

du·ty cy·cle

(ti:ttot) (dū'tē sī'kĕl)
The ratio of inspiratory (ti) time to total-breathing-cycle time (ttot).

duty cycle

During chest compressions of a victim of cardiac arrest, the relative amount of time that the chest is compressed compared to the time that the chest is allowed to recoil to its fully inflated position. A cycle of 50% occurs when chest compression equals chest recoil.
See also: cycle
References in periodicals archive ?
A combinational design layered and Cross layer design is proposed in Low Duty-cycle based Optimized Sleep-schedule (LDCOS) [15].
Low Duty-cycle based Optimized Sleep-schedule (LDCOS) Cross Layer Design for WSN", 6(10): 1910-1919.
As new members of the SC65x tiny charge pump platform, these devices are the industry's first LED drivers to integrate digital low-pass filters that convert a PWM dimming signal's duty-cycle into DC current for LCD backlighting with white LEDs.
In this paper, we propose the UDC (Unsynchronized Duty-cycle Control) scheme.
Without balancing, each phase in a multi-phase system would use the single DPWM duty-cycle output by the compensator.
Non-PLL based clock buffers do not control the pulse skew that creates duty-cycle distortion.
This threshold protects the device and the external MOSFET switch from overheating by switching to low duty-cycle operation when internal rise- time currents are abnormally high.
An on-chip duty-cycle circuit provides overcurrent protection for the device if the lamp current exceeds an internally programmed limit (typically 500 mA).
The HP LaserJet 6L printer family offers a speed and duty-cycle increase of 50 percent over its best-selling predecessors.
In order to effectively combat two of tape's biggest enemies, heat and contamination, the SDX drives incorporate an internal Super Head Cleaner mechanism, which virtually eliminates the need for periodic head cleaning, and a variable duty-cycle internal fan, which automatically cools the electronics and baseplate whenever required.
DLT is a superior solution for today's emerging high duty-cycle applications and is ideally suited to meet the storage demands of network servers and high-end workstations and systems.
Because DLT is ideally suited for network and other high duty-cycle applications, Compaq and a growing number of other leading OEMs, distributors and resellers are offering DLT drives as an integral part of their product lines.